13873161 has 4 divisors (see below), whose sum is σ = 18497552. Its totient is φ = 9248772.

The previous prime is 13873157. The next prime is 13873177. The reversal of 13873161 is 16137831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16137831 = 3 ⋅5379277.

It is not a de Polignac number, because 13873161 - 2² = 13873157 is a prime.

It is a super-2 number, since 2×13873161² = 384929192263842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13873061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2312191 + ... + 2312196.

It is an arithmetic number, because the mean of its divisors is an integer number (4624388).

Almost surely, 2^13873161 is an apocalyptic number.

It is an amenable number.

13873161 is a deficient number, since it is larger than the sum of its proper divisors (4624391).

13873161 is an equidigital number, since it uses as much as digits as its factorization.

13873161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4624390.

The product of its digits is 3024, while the sum is 30.

The square root of 13873161 is about 3724.6692470607. The cubic root of 13873161 is about 240.2841599497.

The spelling of 13873161 in words is "thirteen million, eight hundred seventy-three thousand, one hundred sixty-one".